[Libreoffice-bugs] [Bug 136477] Scrolling a certain document in multi page view (2 pages a row) slowish (Skia Raster); previously also OpenGL

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=136477

--- Comment #6 from V Stuart Foote <vstuart.foote at utsa.edu> ---
Sorry, I also can not confirm.

On laptop with 1920x1080 display. Open document in current master. Not to full
screen, just scale LO frameto most of display, and adjust multi-page view zoom
to 85% to give two column canvas layout.

Scroll by holding the scroll bar's Up or Down triangles.  Equal speed and
smoothness with Skia Vulka, Skia software raster, GDI w/Hardware accel, and GDI
w/CPU only.

The Track changes/comments do flicker during scrolling for both the GDI
renderings. But are smooth (double buffered) for both Skia renderings.

Scroll by dragging the scroll bars "thumb" shows equal performance with all
rendering.

Though, I did not enable OpenGL rendering to test that--don't think it matters
here.

Suppose it could be an os - GPU - driver issue. Windows 8.1 and hardware is
getting a bit dated, and we know Windows 7.1 is hopeless.

=-testing with-=

Version: 7.1.0.0.alpha0+ (x64)
Build ID: a3b4831208da615789bd1e2d5660dd130807f504
CPU threads: 4; OS: Windows 10.0 Build 19041; UI render: Skia/Vulkan; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: threaded

RenderMethod: vulkan
Vendor: 0x8086
Device: 0x5916
API: 1.2.148
Driver: 0.402.395
DeviceType: integrated
DeviceName: Intel(R) HD Graphics 620
Denylisted: no

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/libreoffice-bugs/attachments/20200908/826ff99f/attachment.htm>